lingering
adj. 拖延的，迟迟不结束的
v. 逗留；磨蹭，拖延；继续存留，缓慢消失；持续看或思考；苟延残喘（linger 的现在分词）
例句
All their songs have a lingering potency.
他们所有的歌曲都有挥之不去的影响力。
《柯林斯英汉双解大词典》
Is the lingering shadow of the global financial crisis making it harder to accept extravagant indulgences?
全球金融危机所造成的挥之不去的阴影，是否让人们更难接受奢侈放纵？
Gradually he began to find the sentences lingering in his memory; and soon, to his surprise and pleasure, the whole lesson was mastered!
渐渐地，他开始发现这些句子在他的记忆中挥之不去；很快，令他又惊又喜的是，他掌握了整节课的内容！
